History of the Homestake Mine
SD legislation -- An Act to provide certain provisions relating to the transfer of a portion of the former Homestake Mine to the Science and Technology Authority
Deadwood, SD: history -- link to historical resources of Deadwood, SD
THE BLACK HILLS MINERAL REGION -- by G. M. Schwartz, American Mineralogist, v. 13, p. 56-63, 1928. (old description of the minerals to be found in the Black Hills, SD)